Business automation
Connect the tools you already use. n8n workflows and custom Odoo modules reduce repetitive work in sales, invoicing, and reporting.
Waozi · Software & systems architect
I’m Martin Schiller, a software and DevOps engineer. I work on applications, infrastructure, and automation with teams in English and German.
Freelance since 2021 · English & German · Remote (UTC−3), working US & EU hours

Human-led. AI-supported.
Local-first software.
Open-source foundations.
New game · Play free
A little worm. A long journey.
200 levels. Five landscapes. One apple adventure.
Travel from sunlit meadows to the mountains. Collect apples, dodge wandering fire and find your way through the next gate. Play in your browser or take the journey with you on Android.
No account. No ads. Your progress stays on your device.
01 / Services
From one task to an ongoing contract: software development, Linux infrastructure, and business automation. Remote work in English or German.
Connect the tools you already use. n8n workflows and custom Odoo modules reduce repetitive work in sales, invoicing, and reporting.
Repeatable releases and maintainable infrastructure, with CI/CD pipelines, Docker, Linux servers, and systemd services.
Android, desktop, and web apps, from the first screen to a working release. Thoughtful interfaces and practical tools.
Discuss a project.Get in touch about scope, timing, and availability.
02 / Experience
Software development, infrastructure, and automation for German and international clients.
Odoo development, n8n workflows, and deployment pipelines for day-to-day business operations.
Android development and maintenance for XMRPod, including Monero tipping, accessibility, and upstream integration.
Source codePython and FastAPI services for data collection and reporting, backed by MariaDB.

03 / About
Software & systems architect
I’m a German software and DevOps engineer, working remotely from Asunción, Paraguay, with hours that overlap European and US teams. Since 2021 I’ve worked freelance for German and international clients, from requirements to deployment and maintenance.
Alongside client work, I build open-source tools: Ziran, a programming language; Kryon, a UI library; and apps such as Inner Breeze and Werkzeug.
Waozi · Studio
Games to play. Apps to use. Open one in your browser or download it.
All my games in one place.
Choose a game from big, bright covers. Each one downloads the first time you open it, then plays offline. Get Arcade from the Apps screen in Inner Breeze.
Push. Solve. Come home.
Push balls and crates into place to find your way home. Play 31 puzzles right in your browser.
A little worm. A long journey.
Collect apples and guide an orange worm from the meadow to the mountains. Explore 200 levels across five landscapes, with wandering fire, patrols and a choice of swipe or direction-pad controls.
Breathe. Meditate. Build habits.
Breathing, meditation and habits in one calm app. Works offline, with your history on your device.

Learn, count and color.
Gentle learning games for young children, with watercolor pictures and quiet feedback: a narrated picture book, animal counting and coloring pages. In English, German and Spanish.
Coming soon
Small private tools.
Passwords, two-factor codes, a calculator and a clock in one app. Private by design and open source.
The language and UI library behind these creations.
A language for useful software.
An experimental programming language and toolchain for useful software. Explore its syntax, compiler, and approach to building across platforms.
Small foundations. Native possibilities.
A UI library written in Ziran. Widgets, layout, text editing, and rendering come together in a foundation for interactive apps.